Lúc 7 giờ sáng, một người xuất phát từ A đi về phía B với vận tốc 40km/giờ. Sau đó 30 phút, người thứ hai xuất phát từ B đi về phía A với vận tốc 30km/giờ. Biết quãng đường AB dài 160km. Hỏi hai người...

To solve this problem, we can use the formula: $$ Let's denote the time it takes for the two people to meet as $$ hours. The first person travels for $$ hours at a speed of 40 km/h, and the second person travels for $$ hours at a speed of 30 km/h. We know that the total distance traveled by both people is 160 km. Therefore, we can write the equation: $$ Solving this equation will give us the value of $$, which represents the time when the two people meet. $$ $$ $$ $$ So, the two people will meet after $$ hours from their departure time at $$ AM, which means they will meet at $$ AM. Therefore, the final answer is: Thời gian mà hai người gặp nhau: $$ giờ or $$ giờ in decimal form.